Crystal structure of (R)-6′-bromo-33-dimethyl-3′4′-di­hydro-2′H-spiro­cyclo­hexane-13′-124-benzo­thia­diazine 1′1′-dioxide

摘要

In the title compound, C14H19BrN2O2S, the 1,2,4-thia­diazinane ring adopts an envelope conformation with the N atom (attached to the sulfonyl group) as the flap, while the cyclo­hexane ring adopts a chair conformation. The mean plane of the cyclo­hexane ring is almost normal to the benzene ring and the mean plane of the 1,2,4-thia­diazinane ring, making dihedral angles of 70.4 (2) and 71.43 (19)°, respectively. Furthermore, the dihedral angle between the benzene ring and the mean plane of the 1,2,4-thia­diazinane ring is 4.91 (18)°. The mol­ecular structure is stabilized by an intra­molecular C—H⋯O hydrogen bond, which encloses an S(6) ring motif. In the crystal, mol­ecules are linked by N—H⋯O hydrogen bonds into chains along [10-1], forming a C(6) graph-set motif. These chains are inter­connected via C—H⋯π inter­actions, leading to chains along [-101], so finally forming sheets parallel to (010).